How to Add, Change, and Reprogram a Mazda 3 Spare Key
It's a good idea to have an extra key on hand, whether you dropped your keyfob or it has stopped working. This article will explain everything you need to learn about changing, adding, and programming your Mazda 3 key fobs.
Certain keys require programming from professional locksmiths, while others don't. Make sure to use official
mazda key replacement near me replacements for your key fob.
How do you add an additional key
If you're unable to get a spare key from the dealership when you purchase your Mazda 3 or accidentally break your current one Don't fret, there's a way to add another key. To accomplish this, you'll need an inexpensive flathead screwdriver as well as the new CR2025 batteries. Once you have these items you can access the key fob and swap the battery. Find the key release auxiliary. The button is beneath the metal part. It's easy to find. When you press the button, the back cover will fall off instantly. Then, place the screwdriver's head in the notch on top or the space, and take the metal part away.
After the auxiliary keys are removed, insert your new or spare key into the slot. Turn on the ignition and wait for approximately five seconds, and then turn it to OFF. This will register the new key's information into the system which will allow it to start your car in the future.
It is only possible to program three keys into your Mazda 3. You don't want to have to use more than two keys to start your car. This is a security measure that is designed to block unauthorized users, such as valet drivers, from activating your key and thereby starting your car.
How do I reprogram an unrepaired key
It's a smart idea to know how to reprogram a spare key in the event that your original key gets lost or stolen. This will keep unauthorized people from stealing your car and starting it. This procedure should work with any Mazda however you'll need two keys working to begin the reprogramming process. If you don't have two keys that function it's recommended to take your Mazda to the dealer to have this done.
Begin by getting in your driver's seat and close the door, except for the one that's already opened. Place the first working key into the slot, then turn the ignition to the ON position. After five seconds, remove the key and repeat the process with the second key.
After you've completed programming your new key, you should have three working keys that you can use to start your vehicle in the future. Test each key to ensure sure that they're functioning properly before throwing them away.
It's a good idea buy a spare Mazda 3 key fob, particularly if you're a driver who often loses your key or has other issues with it. You can purchase one online or in your local auto store. Make sure to go through reviews prior to purchasing so that you don't get an item that isn't compatible with your car.
How to change the battery using a spare key
It's very frustrating to discover that your key fob is dead, and you are unable to unlock your vehicle. Fortunately, it's easy to replace the battery and save some cash at the dealership.
Press the auxiliary key button on the back of the keyfob. This will release the key's metal cover and reveal an opening on each side of the case. The flathead should be inserted into one of these slots and then gently pull the two halves of the case apart. Once the battery is fully exposed, take it out of the case and put it in a spot where you'll never forget about it.
Before you start, make sure you have a brand new replacement battery. These batteries can be purchased at any retailer that sells batteries or from a
2010 Mazda 3 Key dealer in Winter Garden. Choosing the correct battery will ensure that your key fob is working effectively.
Replace the battery cap and then insert the new battery. Be careful not damage the rubber ring that holds the battery. Finally, press the two halves of the key fob until you hear a click.
How to reset the system's Keyless Entry System
The key fob inside your Mazda 3 is not only an added convenience, but it's also an important security feature. The car will not start if your key is lost or stolen even if you have a spare key fob. The key fob must be reprogrammed by a dealer to make it work again. This can be a costly and stressful experience It's a good idea to learn how to reset the system yourself.
To reset the system, remove the battery for approximately 15 minutes. This will eliminate any remaining electric current from the onboard computer. Next, disconnect both the connectors for the LF-ECU and the demand switch connectors. Check for continuity between the terminals.
To program a new key, or a spare, place it in the slot and set the ignition to ON. Put the key in for around five seconds, and then switch off. The key information will now be added to the vehicle's computer, and the new fob will be able start your vehicle in the future. You can program up to three fobs, however, you should only use one at a time. This will prevent unauthorized people from stealing your keys and getting access to your car. You can purchase a replacement keyfob online, however it still needs to be cut and programmed by an authorized dealer.